Question

Fill in the blanks
Non - Metal which is stored in water ________.

Answer 1

Hint- In order to deal with this question we will first find the names of some non metals which are non reactive with water and then we will check for the non metals which need to be stored in water such that it does not react with air.

Complete answer:
Non metals usually do not react with water so it is safe to store them in water.
Most non-metals do not react with air at room temperature. White phosphorus is the only nonmetal which reacts by burning with air to form its oxide.
Phosphorus:
Phosphorus has 3 allotropes. They are white, red and black. The allotropic form of Phosphorus (white phosphorus) is less stable and highly reactive, capturing fire in the air to produce dense white fumes of ${P_4}{O_{10}}$
The reaction is as follows:
${P_4} + 5{O_2} \to {P_4}{O_{10}}$
Therefore the non metal phosphorus is kept inside the water in order to avoid the oxidation by the oxygen gas which is present in air.

Hence the correct answer is Phosphorus.

Additional information- A metal is a substance that exhibits a lustrous appearance when freshly washed, polished, or broken, and conducts fairly well in electricity and heat. Generally, metals are malleable, or ductile.

Note- Non-metals are electronegative and are unable to break the bond between H and O in water. The non-metals cannot reduce hydrogen by donating electrons. Thus non metals do not react with water. Usually, nonmetals do not react with water. Except for Chlorine, chlorine dissolves in water to form an acidic solution. Allotropy or the term allotropism is the ability of certain chemical elements to occur in two or more distinct ways, in the same physical state, known as elemental allotropes.